问几道超简单的数学二次函数的题 1.已知二次函数y=ax2+bx+c的图像开口向上,经过(0,11)和(3,5)两个点,且顶点到x轴的距离等于3,求这个抛物线的解析式.2.已知抛物线y=ax2+bx+c经过(-1,1),对称轴为X=-2,
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![问几道超简单的数学二次函数的题 1.已知二次函数y=ax2+bx+c的图像开口向上,经过(0,11)和(3,5)两个点,且顶点到x轴的距离等于3,求这个抛物线的解析式.2.已知抛物线y=ax2+bx+c经过(-1,1),对称轴为X=-2,](/uploads/image/z/5302770-42-0.jpg?t=%E9%97%AE%E5%87%A0%E9%81%93%E8%B6%85%E7%AE%80%E5%8D%95%E7%9A%84%E6%95%B0%E5%AD%A6%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E7%9A%84%E9%A2%98+1.%E5%B7%B2%E7%9F%A5%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0y%3Dax2%2Bbx%2Bc%E7%9A%84%E5%9B%BE%E5%83%8F%E5%BC%80%E5%8F%A3%E5%90%91%E4%B8%8A%2C%E7%BB%8F%E8%BF%87%280%2C11%29%E5%92%8C%283%2C5%29%E4%B8%A4%E4%B8%AA%E7%82%B9%2C%E4%B8%94%E9%A1%B6%E7%82%B9%E5%88%B0x%E8%BD%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E7%AD%89%E4%BA%8E3%2C%E6%B1%82%E8%BF%99%E4%B8%AA%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F.2.%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dax2%2Bbx%2Bc%E7%BB%8F%E8%BF%87%28-1%2C1%29%2C%E5%AF%B9%E7%A7%B0%E8%BD%B4%E4%B8%BAX%3D-2%2C)
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